CN111236039A - Large-span spatial cable net system suspension bridge - Google Patents
Large-span spatial cable net system suspension bridge Download PDFInfo
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- CN111236039A CN111236039A CN202010157736.5A CN202010157736A CN111236039A CN 111236039 A CN111236039 A CN 111236039A CN 202010157736 A CN202010157736 A CN 202010157736A CN 111236039 A CN111236039 A CN 111236039A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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Abstract
The invention discloses a large-span spatial cable net system suspension bridge, and belongs to the field of civil engineering. The suspension bridge with the large-span space cable net system mainly comprises structures such as an arched bridge tower, a main cable, a suspender, a parallel cable, a space cable net, a back cable, an arched ring beam, a stiffening steel beam, an anchorage, a bearing platform, a pile foundation and the like. The invention optimizes the traditional portal bridge tower by applying the Bessel curve, so that the line shape is smoother, and the anchoring requirement of a cable in the arrangement space is more easily met; the space cable net is arranged into a hyperbolic paraboloid form, so that the space rigidity and the flutter critical wind speed of a cable system are effectively improved; meanwhile, the excellent mechanical property of the single-blade double curved surface is applied to improve the appearance of the pile body of the traditional pile foundation, and the anti-overturning performance is obviously improved under the condition of ensuring the anti-bending and anti-shearing bearing capacity of the pile foundation. The large-span spatial cable net system suspension bridge provided by the invention can greatly improve the wind resistance stability of the suspension bridge, and can be used as a reference for building the large-span spatial cable net system suspension bridge.
Description
Technical Field
The invention belongs to the field of civil engineering, and particularly relates to a cable-net system suspension bridge with a large span space.
Background
A suspension bridge, also known as a suspension bridge, is a bridge structure taking tension of a main cable as a main bearing component, and is favored because the suspension bridge has the characteristics of large spanning capacity, reasonable stress, capability of exerting material strength to the greatest extent and the like, and also has the advantages of smooth and attractive integral shape, safe and rapid construction and the like. Modern suspension bridges originated in the united states, and were established in new york in 1883 as Brooklyn (Brooklyn) bridges with a main span of 486m, which were considered as the starting point of modern suspension bridges. Modern suspension bridges in China start late, but develop rapidly, and the construction of mansion sea cang bridges, Yangyin Yangtze river bridges and Yangyuan Yangtze river bridges at present is in sequence, so that the modern suspension bridges in China are marked to take new steps in the aspects of design, construction, scientific research and the like, and some of the modern suspension bridges in China enter international advanced ranks.
A significant trend in the future development of suspension bridges is the ever increasing span. With the increase of the span of the suspension bridge, the torsion frequency and the bending frequency of the suspension bridge of the traditional parallel cable system are close to each other, and the flutter critical wind speed is reduced. There are generally three types of methods for improving the wind resistance of a structure: the pneumatic performance of the section is improved, the vibration characteristic of a damper control structure is arranged, and a space cable structure system is adopted. The former two methods have limited effect on improving the wind resistance stability, and the new space cable system is adopted only by adding some construction procedures, and the torsional vibration and the lateral horizontal vibration of the suspension bridge are coupled to a certain extent by changing the cable system, so that the dynamic stability of the cable system is improved to improve the wind resistance stability of the full bridge, the torsional rigidity and the lateral rigidity of the suspension bridge structure can be improved, and good wind resistance performance is obtained.
The existing space cable system comprises: a cross sling system, a space cable system and a space cable net system. Common arrangements of crossing sling systems are horizontal crossing cables, vertical crossing slings, and combined crossing cable systems of vertical and horizontal cables. The horizontal cross cable improves the torsional rigidity of the structure by inhibiting the anti-symmetric movement of the main cable; the vertical cross cable couples the torsional vibration of the stiffening beam with the horizontal vibration in the same lateral direction, so that the torsional rigidity of the structure is improved. The spatial cable system forms a three-dimensional cable system through the main cable and the suspender, and can greatly improve the transverse and torsional rigidity of the suspension bridge under the condition of little influence on bearing vertical load. Generally, there are single main cable system, inward inclined cable system, outward inclined cable system, etc. The design concept of the space cable net system is derived from a tension integration system, and the rigidity of the space cable net system is the result of stress self-balance between the stay cable and the compression bar unit. The tension integration system has the characteristics of providing rigidity by prestress, forming a stress loop, self-balancing, self-locking, self-supporting, self-adaption and the like. In view of the excellent mechanical property of the space cable net system and the simple construction process, the invention provides a large-span space cable net system suspension bridge based on the space cable net system.
Disclosure of Invention
In order to solve the problems, the invention discloses a suspension bridge with a large-span space cable net system, wherein a Bessel curve is applied to optimize a traditional portal bridge tower, so that the line shape of the traditional portal bridge tower is smoother, and the anchoring requirement of arranging space cables is more easily met; the space cable net is arranged into a hyperbolic paraboloid form, so that the space rigidity and the flutter critical wind speed of a cable system are effectively improved; meanwhile, the excellent mechanical property of the single-blade double curved surface is applied to improve the appearance of the pile body of the traditional pile foundation, and the anti-overturning performance is obviously improved under the condition of ensuring the anti-bending and anti-shearing bearing capacity of the pile foundation.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a large-span spatial cable net system suspension bridge comprises an arched bridge tower, a main cable, a suspender, parallel cables, a spatial cable net, a back cable, an arched ring beam, a stiffening steel beam, an anchorage, a bearing platform and a pile foundation; the arched bridge tower consists of a tower top curve section, a left tower column, a right tower column and a middle cross beam, wherein the tower top curve section is a Bezier curve, two ends of the tower top curve section are respectively connected with the left tower column and the right tower column, the middle cross beam is positioned at the middle lower part of the tower columns to connect the left tower column and the right tower column so as to increase the integrity and play a role of supporting a stiffening steel beam, and the arched bridge tower is fixedly connected on a pile foundation; the two ends of the main cable and the parallel cable are anchored between the two arched bridge towers, one end of the suspender is anchored on the main cable through a cable clamp, and the other end suspends the stiffening steel beam; the arched ring beam is longitudinally arranged along the main cable, the main cable penetrates through a reserved hole in a curve section at the top of the arched ring beam, the cross section of the arched ring beam is gradually retracted from supporting points at two ends of the bridge to the midspan, and the arched ring beam is attractive in appearance; the space cable net is a hyperbolic paraboloid cable net formed by spatial crossing of a plurality of straight-line steel wire cables, cross nodes of the straight-line steel wire cables are fixedly connected, and the space cable net penetrates through the arched ring beam and is fixedly connected with the arched ring beam, so that the space rigidity of a space cable system can be greatly improved; four back cables are divided into two groups, one end of each back cable is anchored on the arched bridge tower, the other end of each back cable is anchored in the anchorage, a bridge tower structure can be used as a force transmission component, a main cable and a space cable net are converted into back cable tension, and meanwhile, the torsion internal force and deformation, the bending internal force and the deformation of the bridge tower structure are effectively controlled; the stiffening steel beam is arranged on the arch bridge tower and the arch ring beam, the bottom of the stiffening beam is matched with the bottom curve of the arch ring beam, and the stiffening steel beam adopts a thin-wing streamline section, so that the wind resistance stability is improved.
Furthermore, the pile foundation is a geometric body formed by the upper bottom surfaces of two identical circular truncated cones facing each other, and the side surface of the pile foundation is a single-sheet hyperboloid. Pile foundation includes the straight line reinforcing bar and the different annular stirrup of diameter, and above-mentioned straight line reinforcing bar is according to single-leaf hyperboloid tubulose configuration space cross arrangement, and above-mentioned annular stirrup is followed the direction of height and is tightly hooped around the straight line reinforcing bar to the ligature is fixed, and the annular stirrup diameter of above-mentioned pile foundation mid point position is minimum, and the annular stirrup diameter of both ends point position department is the biggest, and above-mentioned pile foundation waist is tiny, and the bottom is thick and solid, guarantees the anti-shear capacity of pile foundation bending resistance, is favorable to improving antidumping stability.
The invention relates to a construction method of a suspension bridge of a large-span space cable net system, which comprises the following steps:
the method comprises the following steps: selecting a bridge site of the large-span suspension bridge near a destination according to the requirements of topographic and geological conditions;
step two: laying out and positioning, excavating a foundation pit, blanking straight-line reinforcing steel bars, arranging the straight-line reinforcing steel bars in a cross mode according to a single-leaf double-curved-surface tubular configuration space, forming a reinforcing steel bar framework with annular stirrups, pouring pile body concrete to form a pile foundation, constructing a bearing platform on the pile foundation, assembling a tower top curve section, a tower column and a middle cross beam above the bearing platform, and forming an arch bridge tower structure;
step three: installing a suspension bridge back cable, drawing a steel wire cable rope to cross a river to form a main cable and a parallel cable rope, installing a vertical suspender, and simultaneously spatially crossing a plurality of steel wire cable ropes to form a single-leaf hyperboloid space cable net which is anchored on a tower top curve section of an arch bridge tower;
step four: and installing an arched ring beam, fixedly connecting the hyperbolic paraboloid space cable net with the arched ring beam by adopting a clamp, installing and fixing a stiffening steel beam on the arched ring beam, and installing bridge auxiliary facilities to form a bridge deck system.
The invention has the beneficial effects that:
the invention adopts the Bessel curve to carry out linear optimization on the traditional portal bridge tower, so that the curve of the appearance of the bridge tower is smooth, the cable anchoring connection is facilitated, and the visual effect is good; the traditional parallel cables are dispersed, the weight of single-stranded cables is reduced, and meanwhile, a plurality of spatial cables are arranged into a hyperbolic paraboloid spatial cable net in a spatial crossing manner, so that the spatial rigidity of a cable system can be effectively improved, the torsion resistance frequency ratio and the flutter critical wind speed of a suspension bridge can be greatly improved, and the wind resistance stability of the ultra-large span suspension bridge is ensured; meanwhile, the single-sheet double curved surface is applied to improve the appearance of the traditional pile foundation, has excellent mechanical property under the condition of ensuring the bending resistance and shearing resistance bearing capacity, and can obviously improve the anti-overturning stability.
Drawings
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic partial structure diagram according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a 5 th order Bezier curve used in the embodiment of the present invention;
FIG. 4 is a schematic view of a pile foundation structure according to an embodiment of the present invention;
fig. 5 is a schematic view of a pile foundation structure steel reinforcement cage according to an embodiment of the invention.
List of reference numerals:
1. the bridge comprises an arched bridge tower, 2 parts of main cables, 3 parts of suspenders, 4 parts of parallel cables, 5 parts of space cable nets, 6 parts of back cables, 7 parts of arched ring beams, 8 parts of stiffening steel beams, 9 parts of bearing platforms, 10 parts of pile foundations, 11 parts of tower top curve sections, 12 parts of tower columns, 13 parts of middle cross beams, 14 parts of straight-line reinforcing steel bars and 15 parts of annular stirrups.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1 and 2, the large-span spatial cable network system suspension bridge comprises an arched bridge tower 1, a main cable 2, a suspender 3, a parallel cable 4, a spatial cable network 5, a back cable 6, an arched ring beam 7, a stiffening steel beam 8, an anchorage, a bearing platform 9 and a pile foundation 10; the arch bridge tower 1 consists of a tower top curve section 11, a left tower column 12, a right tower column 12 and a middle cross beam 13, wherein the tower top curve section 11 is a Bezier curve, two ends of the tower top curve section are respectively connected with the left tower column 12 and the right tower column 12, the middle cross beam 13 is positioned at the middle lower part of the tower columns 12 so as to be connected with the left tower column 12 and the right tower column 12 to increase the integrity and play a role of supporting a stiffening steel beam 8, and the arch bridge tower 1 is fixedly connected on a bridge pile foundation 10; the two ends of the main cable 2 and the parallel cable 4 are anchored between the two arched bridge towers 1, one end of the suspender 3 is anchored on the main cable 2 through a cable clamp, and the other end suspends the stiffening steel beam 8; the arched ring beam 7 is longitudinally arranged along the main cable 2, the main cable 2 penetrates through a reserved hole in a curve section at the top of the arched ring beam 7, and the cross section of the arched ring beam 7 is gradually retracted from supporting points at two ends of the bridge to the midspan, so that the appearance is attractive; the spatial cable net 5 is a hyperbolic paraboloid cable net formed by spatial crossing of a plurality of straight-line steel wire cables, all the straight-line steel wire cable crossing nodes are fixedly connected, and the spatial cable net 5 passes through and is fixedly connected with the arched ring beam 7; four back cables 6 are divided into two groups, one end of each back cable is anchored on the arched bridge tower 1, the other end of each back cable is anchored in the anchorage, a bridge tower structure can be used as a force transmission component, a main cable 2 and a space cable net 5 are converted into the tensile force of the back cables 6, and the torsional internal force and deformation, the bending internal force and the deformation of the bridge tower structure are effectively controlled; the stiffening steel beam 8 is arranged on the arch bridge tower 1 and the arch ring beam 7, the bottom of the stiffening beam is matched with the bottom curve of the arch ring beam 7, and the stiffening steel beam 8 adopts a thin wing streamline section to improve the wind resistance stability.
A bezier curve is a mathematical curve applied to a two-dimensional graphical application that can simulate a smooth curve by starting and ending points, and a number of control points. The general equation is as follows:
the method for determining the alignment of the arched bridge tower 1 based on the high-order bezier curve of the present invention is described below with reference to fig. 3, in this embodiment, a bezier curve of 5 orders is used, and the span of the tower top curve segment 11 is determined according to the hyperbolic paraboloid space cable network 5, so as to determine the starting point P of the bezier curve0And end point P5Then, the proper control point P is found according to the rise of the space cable net 51、P2、P3、P4Completing the drawing of the tower top curve segment 11, and then taking the starting point P of the drawn Bezier curve0And end point P5A cut of appropriate length is made to the pylon axis, and then the central beam 13 axis is plotted to determine the line shape of the arched pylon 1. The Bezier curve is a very free curve, the shape of a line can be changed by changing the position and the weight of a control point of the curve, the curvature of the curve can be ensured to reach a higher level by 5 times of the Bezier curve, the formed pylon is attractive in line shape and beneficial to cable anchoring connection, and compared with the traditional mode of expressing the curve by combining a straight line and a circular arc, the method is a huge improvement.
The pile foundation 10 shown in fig. 4 is a geometric body formed by two identical circular truncated cones with opposite bottom surfaces, and the side surface of the pile foundation is a single-sheet hyperboloid. A single-sheet hyperboloid is a typical ruled surface, and the curved surface can be composed of two groups of straight lines. The composite material has important application in buildings, is often used for forming a framework of a building, and has excellent mechanical properties. The single-sheet hyperboloid control equation is:
the pile foundation 10 comprises two clusters of straight-line steel bars 14 and a plurality of annular stirrups 15 with different diameters, the straight-line steel bars 14 are arranged in a crossed mode according to the single-sheet hyperboloid configuration space, the principles of uniform dispersion, symmetry and the like are followed, the construction arrangement positioning of the straight-line steel bars 14 is carried out by fully utilizing the characteristic that the orthographic projection of each straight bus on the plane where the waist circle is located on the single-sheet hyperboloid is tangent to the waist circle, and the reasonable single-sheet hyperboloid space cable torsion angle is selected. The annular stirrups 15 are tightly hooped around the straight-line reinforcing steel bars 14 in the height direction and are bound and fixed, so that a pile foundation steel bar framework shown in fig. 5 is formed, the diameter of the annular stirrups 15 at the middle points of the pile foundation 10 is the minimum, the diameter of the annular stirrups 15 at the two end points is the maximum, the waist of the pile foundation is small, the bottom of the pile foundation is thick, the bending-resistant and shear-resistant bearing capacity of the pile foundation is guaranteed, and the anti-overturning stability of the pile foundation is improved.
The invention relates to a construction method of a suspension bridge of a large-span space cable net system, which comprises the following steps:
the method comprises the following steps: selecting a bridge site of the large-span suspension bridge near a destination according to the requirements of topographic and geological conditions;
step two: laying out and positioning, excavating a foundation pit, blanking straight-line reinforcing steel bars 14, arranging the straight-line reinforcing steel bars 14 in a crossed manner according to a single-leaf hyperboloid tubular configuration space, forming a reinforcing steel bar framework together with annular stirrups 15, pouring pile body concrete to form a pile foundation 10, constructing a bearing platform 9 on the pile foundation, assembling a tower top curve section 11, a tower column 12 and a middle cross beam 13 above the bearing platform 9, and forming an arch bridge tower 1 structure;
step three: installing a suspension bridge back cable 6, drawing a steel wire cable to cross a river to form a main cable 2 and a parallel cable 4, installing a vertical suspender 3, and simultaneously spatially crossing a plurality of steel wire cables to form a single-leaf hyperboloid space cable net 5, wherein the single-leaf hyperboloid space cable net 5 is anchored on a tower top curve section 11 of the arch bridge tower 1;
step four: and (3) installing an arched ring beam 7, firmly connecting the hyperbolic paraboloid space cable net 5 with the arched ring beam 7 by adopting a clamp, installing and fixing a stiffening steel beam 8 on the arched ring beam 7, and installing bridge auxiliary facilities to form a bridge deck system.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.
Claims (3)
1. The utility model provides a long span space cable net system suspension bridge which characterized in that: the device comprises an arched bridge tower (1), a main cable (2), a suspender (3), a parallel cable (4), a space cable net (5), a back cable (6), an arched ring beam (7), a stiffening steel beam (8), an anchorage, a bearing platform (9) and a pile foundation (10); the arch bridge tower (1) is composed of a tower top curve section (11), a left tower column (12), a right tower column (12) and a middle cross beam (13), the tower top curve section (11) is a Bessel curve, two ends of the tower top curve section are respectively connected with the left tower column (12) and the right tower column (12), the middle cross beam (13) is positioned at the middle lower part of the tower columns (12) to connect the left tower column and the right tower column (12) and is used for placing a stiffening steel beam (8), and the arch bridge tower (1) is fixedly connected on a bearing platform (9); the two ends of the main cable (2) and the two ends of the parallel cable (4) are anchored between the two arched bridge towers (1), one end of the suspender (3) is anchored to the main cable (2) through a cable clamp, and the other end suspends the stiffening steel beam (8); the arched ring beam (7) is longitudinally arranged along the main cable (2), the main cable (2) penetrates through a reserved hole in a curve section at the top of the arched ring beam (7), and the cross section of the arched ring beam (7) is gradually retracted from supporting points at two ends of the bridge to the midspan; the spatial cable net (5) is a hyperbolic paraboloid cable net formed by spatial crossing of a plurality of straight-line steel wire cables, all straight-line steel wire cable crossing nodes are fixedly connected, and the spatial cable net (5) penetrates through the arched ring beam (7) and is fixedly connected with the arched ring beam; four back cables (6) are divided into two groups, one end of each back cable is anchored on the arched bridge tower (1), and the other end of each back cable is anchored in the anchorage; the stiffening steel beam (8) is arranged on the arch bridge tower (1) and the arch ring beam (7), and the bottom of the stiffening beam is matched with the bottom of the arch ring beam (7) in a linear mode.
2. The suspension bridge with the cable net system in the large span space of claim 1, wherein: pile foundation (10) are the relative geometry that forms of bottom surface on the same round platform of double-phase, and its side surface is the single-sheet hyperboloid, pile foundation (10) are including straight line reinforcing bar (14) and many annular stirrup (15) that the diameter is different, straight line reinforcing bar (14) are according to single-sheet hyperboloid tubulose configuration space cross arrangement, annular stirrup (15) are followed the direction of height and are tightly hooped around straight line reinforcing bar (14) to the ligature is fixed, the annular stirrup (15) diameter of pile foundation (10) mid point position is minimum, and annular stirrup (15) diameter of both ends point position department is the biggest.
3. The construction method for constructing the suspension bridge of the cable net system with the large span space according to claim 1 is characterized by comprising the following steps:
the method comprises the following steps: selecting a bridge site of the large-span suspension bridge near a destination according to the requirements of topographic and geological conditions;
step two: laying out and positioning, excavating a foundation pit, blanking straight-line reinforcing steel bars (14), arranging the straight-line reinforcing steel bars (14) in a crossed manner according to a single-leaf hyperboloid tubular configuration space, forming a reinforcing steel bar framework with annular stirrups (15), pouring pile body concrete to form a pile foundation (10), constructing a bearing platform (9) on the pile foundation, and assembling a tower top curve section (11), a tower column (12) and a middle cross beam (13) above the bearing platform (9) to form an arch bridge tower (1) structure;
step three: installing a suspension bridge back cable (6), drawing a steel wire cable to cross a river to form a main cable (2) and a parallel cable (4), installing a vertical suspender (3), and simultaneously spatially crossing a plurality of steel wire cables to form a single-sheet hyperboloid space cable net (5), wherein the single-sheet hyperboloid space cable net (5) is anchored on a tower top curve section (11) of the arched bridge tower (1);
step four: and (3) installing an arched ring beam (7), adopting a clamp to firmly connect the hyperbolic paraboloid space cable net (5) with the arched ring beam (7), installing and fixing a stiffening steel beam (8) on the arched ring beam (7), and installing bridge auxiliary facilities to form a bridge deck system.
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| CN111809501A (en) * | 2020-08-18 | 2020-10-23 | 中交第一公路勘察设计研究院有限公司 | Arched bent suspension bridge structure |
| CN112376409A (en) * | 2020-12-04 | 2021-02-19 | 张家港保税区金港建设工程质量检测有限公司 | Composite reinforced pier with circular single-column pier sleeved with horn-shaped straight-line curved-surface column and construction method thereof |
| CN114395981A (en) * | 2021-12-24 | 2022-04-26 | 湖南省中南桥梁安装工程有限公司 | Aerial facility combined by steel cable and building structure |
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| 徐鲍: "超大跨径空间缆索体系悬索桥的力学性能分析与试验研究", 《中国优秀硕士学位论文全文数据库》 * |
| 苏刘: "大跨径单叶双曲面空间缆索悬索桥的静动载试验研究", 《中国优秀硕士学位论文全文数据库》 * |
| 陈浩: "大跨径空间缆索体系悬索桥结构性能的对比研究", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809501A (en) * | 2020-08-18 | 2020-10-23 | 中交第一公路勘察设计研究院有限公司 | Arched bent suspension bridge structure |
| CN112376409A (en) * | 2020-12-04 | 2021-02-19 | 张家港保税区金港建设工程质量检测有限公司 | Composite reinforced pier with circular single-column pier sleeved with horn-shaped straight-line curved-surface column and construction method thereof |
| CN114395981A (en) * | 2021-12-24 | 2022-04-26 | 湖南省中南桥梁安装工程有限公司 | Aerial facility combined by steel cable and building structure |
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| CN111236039B (en) | 2021-06-11 |
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